Hair clipper



March IO, 1931. ORDOVA' 1,795,836

HAIR CLIPPER Filed March 25, 1930 2 Sheets-Sheet 1 illlllllllllllllllllW} J0 a 8 :36 I60 2; 33 28 5mm; James Carder/a March 10, 1931. J. coRDovA 1,795,836

1mm CLIPPER Filed March 25. 1930 ZSheets-Sheet 2 W W WE (woe/whoa Jame? Cordov'a uuuu Au Patented Mar. 10, 1931 UNITE: stares Parser JAMES CORDOVA, or mime-strewn, onro HAIR" crirrnn Application fil'e'd' March 25, 1930. Serial no 438,867.

a taper out to the hair which is to be trimmed v and in order to give the desired smooth taper and finish it is necessary to use the shears to trim thehaiir along the edges of the cuts made by thecli-ppers. My inwention has for its' object-the provision o'fha-ir clippers by the use of which the desired taper in -the hair cut will be automatically attained, the invention providing. means for shifting the cutting blades relative to .the head as the cut is made and 15 then automatically restorethe parts to initialposition for beginning another cut. An embodiment of the: invention is illustrated in the accompanying drawings and w-ill'be-hereinafte'n fully described, the novel features bei i ing particularly pointed out in the appended claims v 1 In the drawings: I Figure 1 is a plan view of hair-clippers embodying the in-vention,-" j r Fig. 2 is a longitudinal vertical section of the same, v

' Fig. 3 is a bottomplan view with the shoe or base runner removed,

Fig. 4 is a similar'view of'the lower cutter H. with the: operating mechanism mounted thereon,: p I

'Fig. ,5 is-a plan view with thecoveir-removedy' 'y V Fig. 6"isaV-d-etail sectiononthe line 6-6 ofFig; 5,

Fig. 7 is a detailrear elevation, withparts in section, on the line"7 '7 of Fig; 3.

Fig, 8 is a detail-plan view ofthe shoe.

In carrying out the present invention,

49 there is provided a shoeor runner'l havingvertical side flanges 2 which are, provided in their inner opposed-faces near their upper edges "with longitudinal grooves 3. At its front end the shoe is provided with a shoulder or ledge shaving a recess 5- adjacent one i side flange the purpose of which-will-presently appear, and; is formed to provide teeth 6 projecting forwardly therefrom whereby 5O theshoe orrunner will constitute a lower comb, plate aswellas a base+for the clippers and rear edges'of the same. The rearedge of and this lug bears against an expansion The handle lever 15 is pivoted immediately threadedextremity of the post Qland bears (occasion demands, all of which isgclearly itsjfront end portion reduced in height toprovide a seat for the transversely reciprocatory .cutter'9; The cutter 9 is guided'in its movement by studs 10 rising from the lower relatively stationary cutter 7 and passing through slots 1-1 in the cutter 9 parallel with the front the cuttert9'is constructed with a' recess or 'notchlQ in which is engaged a finger 13 extending-forwardly and downwardly from a rocker arm 14 which is formed integral with the lower end of the handle lever 15, as will be readily understood whereby, when the handle member is rocked, a transverse reciprocation will be imparted to the upper cutter and the teeth 16 of said cutter will pass across and through the strands of hair. which are supported by the teeth Sof'the lower cutter 7 so that the strands will be severed and the desired cut given the hair. The rocker'arm 14 is formed with a lug 17 upon; its rearside spring 18 housed in a socket 19 which is disposed transversely I of the clipper and is formed integral'with the lever handle 20. The socket 19 is rigidly secured upon or may be formed integral with the lower cutter 7 G and its transverse extent is less than the width oft-he cutter so that it will offerno interference with the flanges 2 of the base or shoe, as will be understood upon reference to Fig. 1.

adjacent the socket upon a post 21 rising from the lower cutter 7 or from the base portion of the socket, as shown in Fig. 2, and a cover22 isfitted over the post and extends downwardly and forwardly to bear upon the cutter 9 and hold it to the lower cutter 7 and alsoto resist the entrance of fine hairs to the interior parts and thereby necessitate frequent cleaning. A wing nut 23 is mounted upon the upper upon a washer 24E interposed between the base 'of the nut and the top of the cover so that'the cover may be firmly secured in placeand at the same time may be readily removed when r .10 3

"Fries V cutter 9, said lug being hollow, as shown in Fig. 4, and a dog 28 being pivotally mounted in said lug and projecting therefrom toward the ratchet to engage the same under the in fluence of a spring 29 housed within the lug 27, as clearly shown in Fig. 4-. It will thus be seen that with each complete movement of the cutter 9 the ratchet 25 will be rotated a distance equal to the movement of the cutter in one direction, and to prevent retrograde movement of the ratchet a holding dog 30 is provided on the under side of the slide 7 and housedin a boX 30 provided therefor, as showman expansion spring 31 being seated in the box and bearing upon the dog, as clearly shown in Fig. l.

Disposed at diametrically opposite points of the ratchet 25 are depending studs 32 which are preferably equipped with loose rollers 33 to reduce friction and are adapted to engage in a notch 34 in. a fulcrum plate 35, fixed to the shoe, whereby, in the operation of the device, there will be a step by step movement between the shoe and the cuttrs and the teeth 6 of the base or shoe will be gradually projected forward under the teeth of the cutters and the length of the cut made by the'clipper thereby gradually increased so that the desired taper will be attained. The notch 34 is formed in the outer side wall of a substantially oval opening 36 formed in the fulcrum plate with its major axis extending from front to rear of the tool and which receives the studs 32 with the rollers mounted thereon so as to accommodate the relatively rearward movement of the studs in the operation of the clippers. This fulcrum plate is also formed with a longitudinal slot 37 between the said opening 36 and the side of the plate more remote from the notch 34, as shown in Fig. 3, and this slot 37 accommodates a lug 38clepending from the lower cutter and forming an abutment for an expansion spring 89 which is disposed within the slot between said abutment and the rear end of the slot, as clearly shown in Fig. 3. When the'rat chet 25 is rotated through the action of the dog 28, the stud or roller which happens to be in engagement with the notch 34 is caused to bear against the forward wall of the notch and its forward travel is'thereby imparted to the fulcrum plate and the shoe so that said plate and shoe are caused to slide along the edges of the lower cutter and move forwardly relative to the cutters. The relative movement of the shoe and slide, of course, carries the rear end of the slot 37 for ward so that the spring 39 is put under compression, and the parts are so adjusted that as the shoe reaches the forward limit of its relative movement, the stud 82 will ride out of the notch 34, whereupon the spring 39 will once expand and, acting upon the lug 38 and the rear end of the slot, return the parts to their initial relation.

In order that the desired relative movement of the cutters and the shoe may be effected, it is necessary that the shoe and fulcrum plate be relatively fixed and this result is attained by providing a cap screw 40 which is inserted upwardly through the'base' or shoe 1 adjacent the rear corner of the same to engage in a socket provided therefor in the fulcrum plate or block 35, and it will 'be understood upon reference to Fig, 7 that the fulcrum plate or block is of slightly less width thanthe lower cutter 7 whereby the block may closely between'the flanges of the base or shoe and permit the edges of the cutter to in the grooves 3. This screw 40 serves to hold all the parts in place, and in order to inspect, repair or clean the clippers, the removal of this screw and of the wing nut will permit a complete disassembling of the device.

it is thought the action of the device will be understood from the foregoing description, taken in connection with the accompanying drawings. The clippers'are operated in the usual manner'by moving the handle 15 toward the handle 20 and then releasing the same as is well known, the cutter 9 being thereby reciprocated transversely of the device, as has been said. The movements of the cutter 9 will effect a step bystep'movement of the ratchet 25 which will be imparted to the shoe as described so that the shoe will be moved relatively forward as the clippers are pushed over the head. The device rests upon the shoe or base 1 and will slide readily over the head and the hair to be trimmed. Initially the cutters will be relatively projected, as shown in Fig. 2, and the points ofthe teeth 8 and 16 may be set close to the scalp so that the hair will be'cut very short. The relative movement of the shoathe slide and the 'cutter, however has the effect of inter osin 7 b a gradually increasing portion of the height of the teeth 6 of the shoe between the scalp and the teeth 8 and 16 and the length of the chance blows and against the access of line hair and dirt or dust so that they are not apt to get out of order and the device may be operated just as easily and with as little fatigue as now attends the use of the ordinary clip- )ers. I

1 Having thus described the invention, I claim:

1. Hair clippers comprising a shoe, a relatively stationary cutter slidably mounted v on the shoe and provided with teeth at its forward end, an upper cutter mounted transversely upon the relatively stationary cutter and having teeth at its front edge to cooperate with the teeth on the stationary cutter, means for reciprocating the upper cutter transversely upon the stationary cutter, and means actuated by the upper cutter whereby v as said cutter is reciprocated the shoe will be slid forwardly under the cutters.

2. Hair clippers comprising a shoe having tapered teeth at its front end, a lower cutter slidably mounted in the upper portion of the shoe and provided at its front edge with forwardly projecting teeth, an upper cutter mounted transversely upon the lower cutter and having teeth at its front edge to cooperate with the teeth on the lower cutter, means for reciprocating the upper cutter transversely of the lower cutter, and means housed in the shoe and actuated by the upper cutter for causing'the shoe to slide forwardly upon the lower cutter and under the cutters.

3. Hair clippers comprising a shoe having side flanges and provided with tapered teeth 7 at its front end, a fulcrum block secured in the shoe and having an opening therethrough whereby to provide a fulcrum notch, a lower cutter slidably mounted in the side flanges of the shoe above the fulcrum plate, an upper cutter mounted on the forward portion of the lower cutter, means for transversely reciprocating the upper cutter, a ratchet mounted on the under side of the lower cutter and housed within the shoe, said ratchet having a depending stud adapted to engage the notch in the fulcrum plate, means whereby the ratchet will be given a step bystep i movement as the cutter is reciprocated whereby the engagementof the stud with the fulmeans for, reciprocating the upper cutter transversely of the lower cutter, a lug on the 7 the shoe, a ratchet on the under side of the lower cutter, a pawl carried by said lug to engage the ratchet, and means whereby rotation of the ratchet will slide the shoe along the lower cutter to project its teeth under both cutters.

In testimony whereof I aflix my signature.

JAMES CORDOVA.

crum plate will effect relative movement of the lower cutter and said plate, and means yieldably resisting the relative movement of the shoe and the cutters and acting to retract the shoe when the stud disengages the fulcrum notch.

4. Hair clippers comprising a shoe provided at its front end with teeth which diminish in height toward their front ends, the shoe 7 7 having a transverse recess in its upper side at the rear of the teeth, a lower cutter slidably engaged at its side edges with. the sides of the shoe and provided with a transverse slot registering witlrthe recess in the shoe, an upper cutter resting on the lower cutter, 

